Pushoam said:
The relationship between E (electric field) and B (magnetic field) in electromagnetic radiation is described by Maxwell's equations. These equations state that the electric and magnetic fields are perpendicular to each other and vary in magnitude and direction as the wave propagates through space. The ratio of the electric field strength to the magnetic field strength is known as the impedance of free space, and is equal to the speed of light.
As electromagnetic radiation travels through space, both the electric and magnetic fields decrease in strength. This is due to the inverse square law, which states that the intensity of a wave decreases with the square of the distance from the source. Therefore, as the wave propagates through space, the electric and magnetic fields become weaker.
The electric field in electromagnetic radiation is responsible for the force that acts on charged particles, while the magnetic field is responsible for the force that acts on charged particles in motion. Additionally, the electric field is perpendicular to the magnetic field and both fields oscillate in a perpendicular direction to the direction of propagation of the wave.
The frequency of electromagnetic radiation does not affect the relationship between E and B. According to Maxwell's equations, the ratio of the electric field strength to the magnetic field strength (impedance) is constant and is equal to the speed of light. This means that as the frequency increases, both the electric and magnetic fields will increase in magnitude to maintain this constant ratio.
E and B are essential components in the propagation of electromagnetic radiation. The alternating electric and magnetic fields are responsible for creating and sustaining the wave as it travels through space. Without these fields, electromagnetic radiation would not exist.
